Remove/Install Additional Compressor - AR09.50-P-4770MSC

Engine 256.9 In Model 167 with code M016 (Uprated engine) 

Courtesy of MERCEDES-BENZ USA

Fig 1: Additional Compressor Components Location - Engine 256.9 In Model 167 With Code M016

Courtesy of MERCEDES-BENZ USA

	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
	Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning  from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Remove/install
1	Remove charge air line from check valve to throttle valve actuator (M16/6).	: Only install upper engine cover after the leak test.	AR09.41-P-8951MSC
2	Remove screw/bolts (3).	Screw, oil feed line to	*BA09.40-P-1006-02MRT
		Bolt, feed line/return line to additional compressor	*BA09.50-P-1002-02MRT
3	Remove coolant return line (4r) and coolant feed pipe (4v) and seal openings with suitable stop plugs.	: Replace sealing rings and coat with lubricant. Lubricant, rubber assembly 1 L	*BR00.45-Z-1010-06A
		Assembly tool	Fig 2
		Record plug	Fig 3
4	Release and disconnect electrical connector (2), unclip electric line.
5	Release and disconnect electrical connector (12) and unclip electric line of electric refrigerant compressor (A9/5) from bracket (13).
6	Remove bracket (13).	Screw, charge air distributor support to crankcase	*BA09.41-P-1015-01MRT
7	Remove screw (7) and charge air line (6) together with attached charge air hose.	: Replace sealing ring and moisten with lubricant. Lubricant, rubber assembly 1 L	*BR00.45-Z-1010-06A
		Screw, charge air line to additional compressor	*BA09.41-P-1006-01MRT
		Assembly tool	Fig 2
8	Release screw clamp (10) and remove screw (9) at timing case.	Screw clamp, boot between charge air lines	*BA09.41-P-1009-01MRT
		Screw, charge air line to timing case	*BA09.41-P-1004-01MRT
9	Remove charge air line (5).	: Install new boot (11).
		: Replace sealing ring and moisten with lubricant. Lubricant, rubber assembly 1 L	*BR00.45-Z-1010-06A
		Assembly tool	Fig 2
10	Remove screws (8).	Screw/bolt, additional compressor to crankcase	*BA09.50-P-1001-02MRT
11	Remove electric additional compressor (M60/1).
12	Install in the reverse order.
	Concluding tasks
13	Connect vehicle diagnosis system, read out fault memory and clear if necessary.
			AD00.00-P-2000-06ME
	Risk of burn injuries,  suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.	AS49.00-Z-0001-01A
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
14	Perform engine test run. While doing so, check engine for proper operation and leak tightness.
15	Install upper engine cover.		AR01.10-P-2405MSC

Fig 2: Identifying Assembly Tool (000 589 93 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA